glutathione wikipedia File:Glutathione-skeletal.svg File:Glutathione structure.png - Wikimedia Commons

Sun exposure damages collagen and elastin fibers through a process called photoaging, which explains why sun-exposed areas like the face, neck, and hands typically show earlier signs of loosening

Some preclinical studies have explored DSIP in pain pathway models, investigating its interaction with opioid receptor systems and examining behavioral pain measures in animal subjects under controlled research conditions

Some are exaggerated

[Abstract] J Adv Res

Another important aspect of their research is that, for this system to function, the correct activity and coordinated action of the various enzymes involved in its complete breakdown are required, highlighting the complexity of these pathways and the ability of tumour cells to adapt and activate alternative metabolic routes

Yu et al, 2017